There isn't any way for you to actually delete your own thread. The only people who can delete your thread are Rebecca, Vixen, and Branch. If you would like to delete your thread, you can do that, or if you would like, you can close your thread. Closing would make it so that no one can post on it, but everyone can still read the posts that were created. Deleting it would just delete the threads and posts, as if they never happened. For either one of these, I would recommend private messaging Rebecca, Vixen, or Branch with what you want to do with the thread in question. At this time, Vixen has not been on a lot, so I would private message Rebecca or Branch.